I cannot drink milk from a cow.
Well, no, not directly from it, that's not a good idea. I buy it at the store!
I cannot drink cow's milk. It damages my insides.
Roar!
Have you tried lactose-free milk?
I cannot drink milk from a cow. Lactose free milk is not organic and I cannot drink it. I can only ingest breast milk from a human like you. Can I suck on your nipples?
ROAR!
Sorry, I have no milk. If I did, I might be persuaded to pump it into bottles and
sell it to you, but since we are total strangers, I would not allow you to get it directly from me in the manner you have described.